Research on welding processes of multi-node aircraft frames and methods for their control

The designed aircraft frame structure uses a connection of tubular rods by welding.To apply automatic welding of trusses, the authors designed and assembled the welding station adapted to the dimensions and truss shape.You should also choose the appropriate welding power source and an interface for communication with a robot or automaton.Automatic welding of trusses also requires programming of the robot's movement trajectory, especially the welding head, and a particularly accurate selection of welding process parameters.The most important issue of automation of the welding process is the nodes of the aircraft engine frame, whose limited access requires manual welding.Therefore, the future of welding lattice aircraft structures requires a hybrid approach to the process, i.e. some of the node connections can be easily automated, and some will remain in classical manufacturing methods.In addition, the topic of checking such connections using NDT methods was discussed.In addition, the issue of checking this type of connection using methods approved for aviation, i.e.NDT, was discussed.